Spinning spindle



J- MONTANE SPINNING SPIN Filed ma 24, 1946 2 Sheets-Sheet 1 nvvs/v roe.J NQMLM A TT0RNEy5 Sept. 13, 1949. J. MONTANE SPINNING SPINDLE 2Sheets-Sheet 2 Filed May 24 1946 mwmwfag J0}? u/M MO/WZWE ,w fok/veysPatented Sept. 13, 1949 UNITED STATES PATENT OFFICE 2,481,681 SPINNINGSPINDLE Joaquim Montan, Petropolis, Brazil Application May 24, 1946,Serial No. 671,967 In Argentina June 5, 1945 Claims.

This invention relates to a spinning spindle and has essentially for itsobject an element of said type, whose characteristics and advantageswill be completely hereinafter set forth.

There are many types of spinning spindles having their supporting pointsfor rotation in the lower part, the upper part thereof being entirelyfree. This is the prominent part since a large bobbin is placed thereon.

The wear and occasional lack of lubrication causes chips and otherparticles resulting from such wear and lack of lubrication to collect,not only in the bearing but in the spindle too, thus torsions areproduced in the overtopping part of the spindle and some off-balance mayresult from faulty coiling.

Because of all these "drawbacksthe length of the overtopping part of thespindle must not be too long, but, in spite of this, it is not possibleto avoid vibrations when the spindle reaches a particular rotationalvelocity and therefore slacks, thread ruptures, and irregular twistingwill result.

The originality of this invention consists in.

supporting the rotating spindle at both of its ends, thereby producingthe following advantages:

(a) A mean length of the overtopping part much longer than usual;

(1)) High rotating velocity;

(0) Elimination of vibrations;

(d) Light turning body;

(e) Bearings and shafts easily replaceable;

and other advantages which will be noted in the following description.

In order to show the main feature of this invention, it is heredescribed and illustrated by way of example in the accompanyingdrawings, where:

Figure 1 is a front elevation view of aset of spindles and their systemof. lubrication, with parts shown in section. A

Fig. 2 is a sectional view, on a larger scale, of the upper end of thespindle, showing the arrangement for supporting and allowing gyratorymotion. 7

Fig. 3 shows a similar section with another arrangement for gyratorymotion.

Fig. 4 is a sectional view, on the same scale, of the lower part of thespindle, showing its manner of attachment to the frame.

In all these figures, the same numbers relate to the same parts.

Referring to the drawings, the spinning spindle 5 2 upper end thereof bymeans of a capsular or pivotal bearing and to the lower end thereof by alower ball or roller-bearing.

The lower part of the spinning spindle, Figs. 1 and 4, is hollow andconsists of three parts: a cylindrical box 3 inside of which is the ballor roller-bearing 4, allowing the spinning spindle to turn; a fixedpulley 5 for receiving a belt, and an upper cylindrical or conicalsleeve 6.

The upper part of the spinning spindle, which may be better seen inFigs. 2 and 3, consists of a cylindrical head I having a downwardextension in the form of a frusto-conical cup 8. This head 1 is boredalong its axis and provided with screw-threads for receiving a screw 9,which has a slot Ill and a downward conical extension H terminating inthe globular member l2, for supporting and allowing oscillatory rotationof the upper part of the spinning spindle.

The middle part of the spinning spindle, which is the main one, consistsof a tube or a hollow conical frustum l3 welded or fixed by anysuitablemeans on the sleeve 6 of the lower part and on the conical cup of theupper part, respectively. This middle part l3 may be made of thin sheet,for lightness.

In order to keep the spinning spindle in its working position, the lowerpart of the hollow column or tubular shaft 2 has a ring 5 which seats onthe ball or roller-bearing race 4, said race being held in position bymeans of a ring l'5 having an enlarged base, which is pressed againstthe frame l6 by means of the double nuts l1 and I8, positionedunderneath the frame I6 and screwed on the lower end ofthe shaft 2,which extends through said frame It. By this means the hollow column ortubular shaft 2 is fixed on the frame IS. The upper end of the hollowcolumn or tubular shaft 2, has screwthreads in its inner surface forfixing a cupshaped bearing l9a, inside of which the globular member l2seats. supporting the upper part of the spinning spindle.

In the modification disclosed in Fig. 3, the threaded member SA has adisc-like enlarged extension 20, which abuts the inner face of theconical cup 8 and has a central cavity 2| in its lower face. The turningbody of the spinning spindle is mounted upon a pivot 22, having a discnear its upper end 23. This pivot 22 seats in a cup-shaped head 24,screwed in the end of the hollow column or tubular shaft 2, and has itsupper end or top engaged in said cavity 2 I.

The lubrication of the spinning spindle turning parts is obtained bykeeping constant the oil level in a feeding oil reservoir 25. The oilflows through vertical and horizontal tubes 26 and 21, goes up throughthe tubular shaft 2 and overflows into the cup-shaped bearings l9 and24, through the communicating passage 29. From the horizontal tube 21branches are provided for each spinning spindle, by means of screwedcouplings 30, or, preferably, as shown in Fig. 4, by means of rubbertubes 3|.

The lubrication of lower ball or roller-bearings 4 is obtained by aperiodical raising of the oil level in the feeding oil reservoir 25, insuch a wayas to overtop the corresponding level of upper cup shapedbearing 19 and 24 to cause the oil to over-- flow and pour outside ofthe hollow column or tubular shaft 2, and along it. as far as to reach 1said lower ball or roller-bearing 4. In order to prevent the overflowingoil from running too fast, a wick W shown in Fig. 2, is put into thehollow column or tubular shaft 2, allowing a gradual flowing in thewhole set of spinning spindles, which is fed by its common oilreservoir. Thus, this hollow column or tubular shaft 2, besides keepingthe turning body of the spinning spindle in its working position, hasthe additional purpose to serve as a duct for the lubrication of theShaft and bear ngs of said spinning spindle.

It is obvious that what has been described and represented may bemodified in its details, without departing from the basis of thisinvention, which is clearly set forth in following claims. Having nowparticularly described and ascertained the nature of my said inventionand in what manner the same is to be performed, I declare that what Iclaim and desire to secure by United States Letters Patent is:

1. In a spinning spindle assembly of the type described, a rotatablespindle comprising a lower portion formed by a cylindrical box-like basepart, a flanged sleeve extendingupward, and a pulley between said basepart and sleeve; an upper portion formed by a cylindrical head having afrusto conical cup-like downward extension; and a central. tubular mainportion rigidly fastened at the inner surface of its lower end to theouter surface of said flanged sleeve, and, at its outer end, to theouter surface of said cup-like extension, a ball bearing for thespindle, said bearing being housed by said box-like base part, a hollowstationary shaft centrally arranged in and housed by said spindle, forsupporting and guiding both ends of said spindle, a cup-shaped bearingsecured in the upper end of said shaft, and a rotatable supportingelement centrally arranged in said cylindrical head and journaled insaid cu -shaped bearing.

2. In a spinning spindle assembly of the type described, arotatablespindle comprising a lower portion formed by a cylindricalbox-like base part, a flanged sleeve extending upward, and a pulleybetween said base part and sleeve; an upper portion formed by acylindrical head having a frusto conical cup-like downward extension;and a central, tubular main portion rigidly fastened at the innersurface of its lower end to the outer surface of said flanged sleeve,and, at its other end, to the I outer surface of said cup-likeextension, a ball bearing for the spindle, said bearing being housed bysaid box-like base part, a hollow stationary shaft centrally arranged inand housed by said spindle, for supporting and guiding both ends of saidspindle, a cup-shaped bearing secured in the upper end of said shaft,and a self-aligning rotatable supporting element provided with adownward extension having a spherical end portion, said element beingcentrally arranged in said cylindrical head and bearing.

iournaled in said cup-shaped described, a rotatable spindle comprising alower portion formed by a cylindrical box-like base part, a flangedsleeve extending upward, and a pulley between said base part and sleeve;an upper portion formed by a cylindrical head having a frusto conicalcup-like downward extension; and a central, tubular main portion rigidlyfastened at the inner surface of its lower end to the outer surface ofsaid flanged sleeve, and, at its other end, to the outer surface of saidcup-like extension, a ball bearing for the spindle, said bearing beinghoused by said box-like base part, a hollow stationary shaft centrallyarranged in and housed by said spindle, for supporting and guiding bothends of said spindle, a cup-shaped bearing secured in the upper end ofsaid shaft, and

extension having a central recess, a self-aligning pivot journaled insaid cup-shaped bearing, and having a disc-like ring near its upper endengaged in said recess, said element being centrally arranged in saidcylindrical head.

4. In a spinning spindle assembly of the type described, a rotatablespindle comprising a lower portion formed by a cylindrical box like basepart, a flanged sleeve extending upward, ,and a. pulley between saidbase part and sleeve; an upper portion formed by a cylindricalheadhaving a frusto conical cup-like downward extension; and a central,tubular main portion rigidly fastened at the inner surface of its lowerend to the outer surface of said flanged sleeve, and, at its other end,to the outer surface of said cup-like extension, a ball bearing for thespindle, said bearing being housed by said box-like base part, a hollowstationary shaft centrally arranged in and housed by said spindle, forsupporting and guiding said spindle, a frame for supporting theassembly, said hollow shaft extending through said frame and beingadapted at its lower end to receive the supply of a lubricating fluidfor the assembly.

5. A spinning spindle assembly as claimed in JoA unu MONTANE.

REFERENCES CITED v The following references are of record in the file ofthis patent:

Number UNITED STATES PATENTS Name Date Number V Dewhurst etal. Apr. 28,1885 FOREIGN PATENTS Country Date France June 18, 1934 Great BritainOct.15, 1930 France Jan. 12, 1903 a rotatable supportingelement providedwith an enlarged disc-like Ashton Dec. 3, 1895- Germany rloy'. 14, 1929

